ROFILES

ConvertYard is a browser-based file conversion platform powered by WebAssembly. All processing happens on your device — files never leave your browser. Image tools: Convert HEIC, JPG, PNG, WebP, and AVIF formats. Compress, resize, and remove backgrounds in bulk. PDF tools: Merge PDFs, compress file size, extract pages, delete pages, crop, add page numbers, and export pages as images. Video & audio: Convert between formats and extract audio tracks. Developer utilities: Format JSON, encode/decode Base64, convert JSON to CSV. AI tools: Auto-generate alt text for images to improve accessibility. All tools support batch processing of up to 1,000 files per run. Results are packaged into a single ZIP download. No account required, no watermarks, no file size paywalls. Works offline after the initial page load via WebAssembly caching. Clean interface with no ads inside the conversion workflow.

Batch converting images by changing size by width, height, percentage or custom, renaming image files, adding image or text watermark, adding solid or gradient color border and rotating photo to left, right or 180 degree to make the conversion process more personalized. Add watermark. Not only add captions and images as watermark, but also allows you to adjust font, style, color, opacity, size, angle, position and more in batch. You can instantly preview the applied effects on all the photos to get the optimal result. Instant preview. When you apply the photo effects or add watermark, you can have instant preview for the result from the interface for all the image files. And you can also click Preview to check the result for each image in detail in an easy process. User friendly. Settings to overwrite the files with the original name, switch to turn off and restore to original images in one click. Multiple settings for resize, add watermark and more to get the best result.